Plasma is the name of the new desktop planned to replace KDesktop in KDE4. You may think that it is a union of [http://netdragon.sf.net SuperKaramba] and KDesktop, but it's more. It's a whole concept of functionality and beauty.

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Plasma is the name of the new desktop which replaced KDesktop in KDE4. You may think that it is a union of [http://netdragon.sf.net SuperKaramba] and KDesktop, but it's more. It's a whole concept of functionality and beauty.</translate>

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Its implementation is based on the Qt [http://doc.trolltech.com/graphicsview.html Graphics View Framework] introduced in Qt 4.2.

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Its implementation is based on the Qt [http://qt-project.org/doc/qt-4.8/qgraphicsview.html Graphics View Framework] introduced in Qt 4.2.</translate>

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From a developer point of view there are some classes in libplasma who play central roles.

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From a developer point of view there are some classes in libplasma who play central roles.</translate>

* '''Applet''': extends Widget and implements sophisticated functionality as rss display, a clock or system monitoring.

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* '''DataEngine''': The common use of a DataEngine is to provide data to an applet for display. This allows a user interface elements to show all sorts of data.

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'''Widget''': extends [http://qt-project.org/doc/qt-4.8/qgraphicsitem.html QGraphicsItem] and works as simple elements in the desktop. There are some built-in in libplasma as icons or buttons.</translate>

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* <translate><!--T:6-->

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'''Applet''': extends Widget and implements sophisticated functionality as rss display, a clock or system monitoring.</translate>

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* <translate><!--T:7-->

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'''DataEngine''': The common use of a DataEngine is to provide data to an applet for display. This allows a user interface elements to show all sorts of data.</translate>